Foldable portable toilet seat



FIG. 1 is a perspective view of a foldable portable toilet seat showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof, the elevational view of the opposing side being a mirror image thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view showing the foldable portable toilet seat in a folded condition. 

I claim the ornamental design for a foldable portable toilet seat, as shown and described. 